The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 02, 2012
Filed:
Nov. 14, 2008
Michael Louis Hayden, Plano, TX (US);
Jeffrey Allen Hanson, Allen, TX (US);
Keith Melcher, McKinney, TX (US);
Robert Mark Reynolds, Richardson, TX (US);
Patricia Ann Constandine, Dallas, TX (US);
Michael Louis Hayden, Plano, TX (US);
Jeffrey Allen Hanson, Allen, TX (US);
Keith Melcher, McKinney, TX (US);
Robert Mark Reynolds, Richardson, TX (US);
Patricia Ann Constandine, Dallas, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
Systems and methods and resulting compositions of matter including silicon solids from a mixture of silicon and water. The mixture is collected at a collection stage from at least one wafer abrasion process performed on a silicon surface having an impurity concentration ≦0.1 ppb and extracting one portion of the water from the mixture using at least one dryer stage to form a dry cake. The dry cake includes at least 99.99% silicon by weight excluding water and non-silicon species, where a concentration of water in the dry cake is between 0.05% and 1% by weight, and where a concentration of non-silicon species in the dry cake is between 0.05% and 1% by weight.